Consistency of fracture assessment criteria for the NESC-1 thermal shock test

Rauno Rintamaa, Kim Wallin (Corresponding Author), Heikki Keinänen, Tapio Planman, Heli Talja

Research output: Contribution to journalArticleScientificpeer-review

7 Citations (Scopus)

Abstract

In this report, a best estimate analysis of the NESC Spinning Cylinder test is performed and the consistency of the state of the art application of the different fracture parameters and assessments criteria is examined. Direct fracture toughness measurements best describes the fracture behavior of the NESC Spinning Cylinder in the simulated pressurized thermal shock loading. The concept based on the ASME RTNDT reference temperature (either Pellini or Cv test) does not provide consistent description of the NESC1 fracture assessment. In general the fracture mode, i.e. ductile initiation and tearing followed by cleavage event, was successfully estimated by 3D FE based fracture assessment, combined with Master Curve description of fracture toughness.
Original languageEnglish
Pages (from-to)125-135
Number of pages11
JournalInternational Journal of Pressure Vessels and Piping
Volume78
Issue number2-3
DOIs
Publication statusPublished - 2001
MoE publication typeA1 Journal article-refereed

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Thermal shock
Fracture toughness
Temperature

Keywords

  • fracture assessment
  • reference temperature
  • master Curve
  • pellini
  • NESC

Cite this

Rintamaa, Rauno ; Wallin, Kim ; Keinänen, Heikki ; Planman, Tapio ; Talja, Heli. / Consistency of fracture assessment criteria for the NESC-1 thermal shock test. In: International Journal of Pressure Vessels and Piping. 2001 ; Vol. 78, No. 2-3. pp. 125-135.
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Consistency of fracture assessment criteria for the NESC-1 thermal shock test. / Rintamaa, Rauno; Wallin, Kim (Corresponding Author); Keinänen, Heikki; Planman, Tapio; Talja, Heli.

In: International Journal of Pressure Vessels and Piping, Vol. 78, No. 2-3, 2001, p. 125-135.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Rintamaa, Rauno

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AU - Talja, Heli

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AB - In this report, a best estimate analysis of the NESC Spinning Cylinder test is performed and the consistency of the state of the art application of the different fracture parameters and assessments criteria is examined. Direct fracture toughness measurements best describes the fracture behavior of the NESC Spinning Cylinder in the simulated pressurized thermal shock loading. The concept based on the ASME RTNDT reference temperature (either Pellini or Cv test) does not provide consistent description of the NESC1 fracture assessment. In general the fracture mode, i.e. ductile initiation and tearing followed by cleavage event, was successfully estimated by 3D FE based fracture assessment, combined with Master Curve description of fracture toughness.

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